Improvement in grading-machines



PATENT rrron.

JOHN F. HANNA, OFKMOMEN'OE, ILLINOIS.

IMPROVEMENT IN GRADING-MACHINES.

specificati@ farming part of Letters Patent No. 119,353, dated september 26, 1s71.

To all 'whom 'it may concern:

Be itknown that I, JOHN F. HANNA, of Momence, in the county of Kankakee and State of Illinois, have invented a new and Improved Ditching and Grading-Machine 5 and I do hereby declare that the following is a full, clear, and eX- act description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification.

.This invention relates to improvements in machines for ditching` and grading; and it consists in the hereinafterdeseribed arrangement of devices employed, in connection with a cutting-and elevating wheel arranged obliquely under the frame, of a truck for gathering the earth at the lowest side and elevating it to the highest side, where it is either discharged upon the ground or onto another oblique carrying-wheel.

Figure lis a plan of my improved machine, and Fig. 2 is a transverse section taken on the line a; w of Fig. l.

Similar letters of reference indicate corresponding parts.

A is a broad rectangular frame suspended from the frame 'B of a truck by a beam, G, to which it is hinged at D, said beam being suspended by the adjusting-bolts E om a long frame, F, placed on the top of ame B, and. made adjustable crosswise of the truck-frame, and provided with an adjustingscrew, G. H is the cutting-and-elevating wheel mounted between two bars, A', of the frame A, and having a broad sharp-edged flange, I, of steel, for being forced into the earth obliquely as the truck is moved along the ground with the ilange I let down at 011e side of the truck so low as to be forced into the' ground as the wheel turns by the friction of the contact with it. The iiange is let down with the frame more or less by a handdever, K, suitably arrangedl and connected with theframe. L is a iiXed cutter or colter, attached to the frame so as to cut a slice of earth from the bank above the flange on which it is to be carried up. The colter has a curved part, M, extending along the curved line described by the periphery of the ange, about half-way to the upper side, to hold the earth thereon; and as afurther means of confining the earth on said iange the wheel is provided at suitable intervals with holding-plates N, hinged to the wheel above the rim O, so that the overhanging parts will rest on the earth taken on the iiange and confine it there. Q is a scraper fixed at the upper side of the wheel, consisting of a curved plate of steel fixed to the frame, and so arranged with the flange I and rim O as to arrest the earth and throw it off. It is made to bear with more or less tension on the rim O by the set-screwQ. The point of this scraper will pass under the holders and lift them up so as to scrape the earth off freely and thoroughly. R is another obliquelyarranged carryingwheel, mounted on an arm extending from frame A, and arranged relatively to wheel H so as to receive the earth therefrom and convey it further away.

This wheel R is turned by a cord or belt, T, working around its hub and around the hub of Wheel H. U is a scraper applied to the wheel R. N is a presser-roll arranged to work on a circular track, I', formed on the wheel H and inside of the cutterflange I, but concentric therewith. This serves to keep the flange I down at the greatest point of strain, assists in causing it to cut always at the same depth, and enables it to revolve constantly in the same plane. The supporting-frame W for the roller N is made adjustable on the irame, and provided with the adjusting-screw X for shifting it. The rear truckwheel on the left-hand side will run in the furrow cut in advance of it, and serves as a guide for the machine. The breadth of the cut is governed by adjusting the frame F laterally by the screw G, and the Obliquity ofthe bottom of the furrow, which will also be the bottom of the ditch, will be governed by the adjusting-bolts E and the lever K.

The machine will work om each side of the land described by the rst round of the machine toward the center.

For digging ditches alongside a road and delivering the earth upon the bed thereof this improved machine will be found to possess especial adaptation.

'Having thus `described my invention, I claim as new and desire to secure by Letters Patent- 1. The cutting-and-carrying wheel H mounted on the hinged frame A when the latter is suspended from the laterally-adjustable frame F by the vertically-adjusting bolts E and beam C, all substantially as specified.

2. The arrangement, obliquely to the earth, of the annular rotary cutter I, and, at right angles thereto, the correspondingly-shaped stationary 6. In combination With rim O, annular cutter cutter L, as and for the purpose described. I, and scraper Q, the rotary dirt-receiving-and- 3. In combination with cutters I L arranged discharging Wheel R, arranged as described. as described, the curved plate M and rim O, to 7 The arrangement of the roller V and circuguide the soil, as set forth. lar track I upon the hinged frame and wheel 4. The annular cutter-flange I, rim O, and ex- H, respectively, to hold the flange I near that tension M of stationary cutter L, combined with part of the edge which is cutting out the soil. pressure-plates N placed at intervals, as and for JOHN F. HANNA. the purpose speciied.

5. In combination with cutters I L and rim O, Witnesses: the scraper Q, obliquely arranged to discharge FARMON SCRAMLIN, the dirt as described. HARLEY J. BALLARD. 

